| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 021/105] netfilter: ipset: do not call ipset_nest_end after nla_nest_cancel | Date | Fri, 11 Jan 2019 15:13:52 +0100 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 708abf74dd87f8640871b814faa195fb5970b0e3 ]
In the error handling block, nla_nest_cancel(skb, atd) is called to cancel the nest operation. But then, ipset_nest_end(skb, atd) is unexpected called to end the nest operation. This patch calls the ipset_nest_end only on the branch that nla_nest_cancel is not called.
Fixes: 45040978c899 ("netfilter: ipset: Fix set:list type crash when flush/dump set in parallel") Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- net/netfilter/ipset/ip_set_list_set.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c index 75d52aed6fdb..e563921e6af5 100644 --- a/net/netfilter/ipset/ip_set_list_set.c +++ b/net/netfilter/ipset/ip_set_list_set.c @@ -542,8 +542,8 @@ list_set_list(const struct ip_set *set, ret = -EMSGSIZE; } else { cb->args[IPSET_CB_ARG0] = i; + ipset_nest_end(skb, atd); } - ipset_nest_end(skb, atd); out: rcu_read_unlock(); return ret; -- 2.19.1
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